[POWERPC] spufs: Add runcntrl read accessors
This change adds a read accessor for the SPE problem-state run control
register.
This is required for for applying (userspace) changes made to the run
control register while the SPE is stopped - simply asserting the master
run control bit is not sufficient. My next patch for isolated-mode
setup requires this.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h
index 135fbb5..ca56b9b 100644
--- a/arch/powerpc/platforms/cell/spufs/spufs.h
+++ b/arch/powerpc/platforms/cell/spufs/spufs.h
@@ -115,6 +115,7 @@
void (*npc_write) (struct spu_context * ctx, u32 data);
u32(*status_read) (struct spu_context * ctx);
char*(*get_ls) (struct spu_context * ctx);
+ u32 (*runcntl_read) (struct spu_context * ctx);
void (*runcntl_write) (struct spu_context * ctx, u32 data);
void (*master_start) (struct spu_context * ctx);
void (*master_stop) (struct spu_context * ctx);